Path analysis under multicollinearity for papaya production of the Solo and Formosa groups.

Detalhes bibliográficos
Autor(a) principal: MOREIRA, S. O.
Data de Publicação: 2018
Outros Autores: KUHLCAMP, K. T., BARROS, F. L. de S., OLIVEIRA, S. B. de, TRINDADE, R. dos S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1099883
Resumo: Correlations and path analysis allow the understanding of the interrelations between characteristics of interest to the plant breeding. However, in order for their results to be reliable, the undesirable effect of multicollinearity must be excluded. The objective of this study was to estimate the correlations and their partitioning in direct and indirect effects, by path analysis, on the fruit production per plant (FP) of papaya from the heterotic Solo and Formosa groups, using two different strategies to circumvent multicollinearity. Eleven agronomic variables were evaluated in twelve papaya genotypes from the Solo group and nine from the Formosa group. Path analysis was obtained with the FP as the basic variable and to eliminate multicollinearity were used the discard of variables and the ridge path analysis. For the Solo group, fruit length and pulp thickness had greater direct effects on FP. In the Formosa group, the number of commercial fruits had a direct and indirect effect on FP. The two methodologies used to circumvent multicollinearity had high coefficient of determination, with better values for the ridge path analysis. The results indicated that the interrelation between the study characters was different in the Solo and Formosa groups. Thus, indirect selection strategies should be specific for each heterotic group.
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spelling Path analysis under multicollinearity for papaya production of the Solo and Formosa groups.Análise de trilhaSeleção indiretaMelhoramento VegetalMamãoCorrelations and path analysis allow the understanding of the interrelations between characteristics of interest to the plant breeding. However, in order for their results to be reliable, the undesirable effect of multicollinearity must be excluded. The objective of this study was to estimate the correlations and their partitioning in direct and indirect effects, by path analysis, on the fruit production per plant (FP) of papaya from the heterotic Solo and Formosa groups, using two different strategies to circumvent multicollinearity. Eleven agronomic variables were evaluated in twelve papaya genotypes from the Solo group and nine from the Formosa group. Path analysis was obtained with the FP as the basic variable and to eliminate multicollinearity were used the discard of variables and the ridge path analysis. For the Solo group, fruit length and pulp thickness had greater direct effects on FP. In the Formosa group, the number of commercial fruits had a direct and indirect effect on FP. The two methodologies used to circumvent multicollinearity had high coefficient of determination, with better values for the ridge path analysis. The results indicated that the interrelation between the study characters was different in the Solo and Formosa groups. Thus, indirect selection strategies should be specific for each heterotic group.Sarah Ola Moreira, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural; Karin Tesch Kuhlcamp, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural; Fabíola Lacerda de Souza Barros, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural; Sabrina Batista de Oliveira, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural; ROBERTO DOS SANTOS TRINDADE, CNPMS.MOREIRA, S. O.KUHLCAMP, K. T.BARROS, F. L. de S.OLIVEIRA, S. B. deTRINDADE, R. dos S.2018-11-25T23:33:04Z2018-11-25T23:33:04Z2018-11-2220182018-11-25T23:33:04Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Brasileira de Fruticultura, Jaboticabal, v. 40, n. 3, e-110, 2018.http://www.alice.cnptia.embrapa.br/alice/handle/doc/109988310.1590/0100-29452018110enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-11-25T23:33:10Zoai:www.alice.cnptia.embrapa.br:doc/1099883Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-11-25T23:33:10falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-11-25T23:33:10Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Path analysis under multicollinearity for papaya production of the Solo and Formosa groups.
title Path analysis under multicollinearity for papaya production of the Solo and Formosa groups.
spellingShingle Path analysis under multicollinearity for papaya production of the Solo and Formosa groups.
MOREIRA, S. O.
Análise de trilha
Seleção indireta
Melhoramento Vegetal
Mamão
title_short Path analysis under multicollinearity for papaya production of the Solo and Formosa groups.
title_full Path analysis under multicollinearity for papaya production of the Solo and Formosa groups.
title_fullStr Path analysis under multicollinearity for papaya production of the Solo and Formosa groups.
title_full_unstemmed Path analysis under multicollinearity for papaya production of the Solo and Formosa groups.
title_sort Path analysis under multicollinearity for papaya production of the Solo and Formosa groups.
author MOREIRA, S. O.
author_facet MOREIRA, S. O.
KUHLCAMP, K. T.
BARROS, F. L. de S.
OLIVEIRA, S. B. de
TRINDADE, R. dos S.
author_role author
author2 KUHLCAMP, K. T.
BARROS, F. L. de S.
OLIVEIRA, S. B. de
TRINDADE, R. dos S.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Sarah Ola Moreira, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural; Karin Tesch Kuhlcamp, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural; Fabíola Lacerda de Souza Barros, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural; Sabrina Batista de Oliveira, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural; ROBERTO DOS SANTOS TRINDADE, CNPMS.
dc.contributor.author.fl_str_mv MOREIRA, S. O.
KUHLCAMP, K. T.
BARROS, F. L. de S.
OLIVEIRA, S. B. de
TRINDADE, R. dos S.
dc.subject.por.fl_str_mv Análise de trilha
Seleção indireta
Melhoramento Vegetal
Mamão
topic Análise de trilha
Seleção indireta
Melhoramento Vegetal
Mamão
description Correlations and path analysis allow the understanding of the interrelations between characteristics of interest to the plant breeding. However, in order for their results to be reliable, the undesirable effect of multicollinearity must be excluded. The objective of this study was to estimate the correlations and their partitioning in direct and indirect effects, by path analysis, on the fruit production per plant (FP) of papaya from the heterotic Solo and Formosa groups, using two different strategies to circumvent multicollinearity. Eleven agronomic variables were evaluated in twelve papaya genotypes from the Solo group and nine from the Formosa group. Path analysis was obtained with the FP as the basic variable and to eliminate multicollinearity were used the discard of variables and the ridge path analysis. For the Solo group, fruit length and pulp thickness had greater direct effects on FP. In the Formosa group, the number of commercial fruits had a direct and indirect effect on FP. The two methodologies used to circumvent multicollinearity had high coefficient of determination, with better values for the ridge path analysis. The results indicated that the interrelation between the study characters was different in the Solo and Formosa groups. Thus, indirect selection strategies should be specific for each heterotic group.
publishDate 2018
dc.date.none.fl_str_mv 2018-11-25T23:33:04Z
2018-11-25T23:33:04Z
2018-11-22
2018
2018-11-25T23:33:04Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Revista Brasileira de Fruticultura, Jaboticabal, v. 40, n. 3, e-110, 2018.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1099883
10.1590/0100-29452018110
identifier_str_mv Revista Brasileira de Fruticultura, Jaboticabal, v. 40, n. 3, e-110, 2018.
10.1590/0100-29452018110
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1099883
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
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